Spindle pin remover



May 16, 1939. E. H. SCHULTZ 43 SPINDLE PIN REMOVER Filed Dec. 16, 1937 BY flzdi??? ATToRNEY Patented May 16, 1939 v UNITED STATES SPINDLE rm REMOVE Edward H. Schultz, Milwaukee, Wis., assignor to Blackhawk Mfg. 00., Milwaukee, Wis., a corporation of Wisconsin Application December 16, 1937, Serial No. 180,088-

Claims.

This invention relates in general to improvements in appliances for repairing automobile assemblages or the like, and relates more specifically to improvements in the construction and 5 operation of tools for eifecting removal of the king or spindle pins from the steering assemblies of vehicles.

Generally defined, an object of my present invention is to provide an improved tool or jack attachment which may be expeditiously and ef-- 1 fectively utilized to remove the spindle pivot pins from automobile assemblages of certain types.

In the art of repairing automobiles, it is rather difiicult especially in completed assemblages, to

is get at certain parts for purposes of renewal,

and this is particularly true of the substantially upright pivot pins which swingably connect the wheel carrying spindles with the opposite ends of the front axle or axle beam in modern automobiles These spindle pivot pins are of considerable length, and are quite snugly fitted in a hole formed in the end of the axle and are journaled in the bifurcated spindle end; and in order to force the pins out of the alined con- 5 fining holes, it is frequently necessary to apply enormous ejecting pressures which must be directed against the pins in line with their longitudinal axes so as to avoidpossible damage to the parts. Because of the fact that the wheel carrying spindles have irregular enlarged upper ends, and are usually inclined downwardly and outwardly and are not disposed perpendicular to their'pivot pins, it-has heretofore been impossible to conveniently and quickly utilize the spindles-themselves as reaction supports for the jacks employed forejecting the pivot or kin pins; and these pins have heretofore been removed'with considerable difliculty with theaid of various devices, including a chain slung over the top of the spindle bracket and having its lower ends attached to a cross-head secured to the outer jack member or cylinder. These prior methods of utilizing a chain or the like, are not only tedious because of obstructions, but also in- 5 volve considerable loss of time and frequently result in damaged parts.

It is therefore a more specific object of my present invention, to provide an improved jack attachment or assemblage which may be quickly and conveniently used to remove even the most snugly fitted king pins, and which utilizes the wheel spindles, and adjacent parts as reaction supports for the jack.

; Another spe ific"object of the invention is the.

provision-of an improved spindle pivot pin reof my invention, and of the mode of constructl5 ing and of utilizing spindle pin removers built in accordance with my improvement, may be' had by'referring to the drawing which accompanies and forms a part of this specification wherein like reference characters designate the 6 same or similar parts in the several views.

Fig. 1 is a perspective view of a fragment of the front portion of an automobile showing my improved attachment in action during removal of one of the king pins;

Fig. 2 is an enlarged part section 1 front elevation .of the improved attachment; showing the same applied to fragments of a hydraulic 'jack and suspended from a wheel spindle of one type;

Fig. 3 is a section through the suspension por- 30 tion of the attachment, showing the centering adapter collar reversed for coaction with a different type of wheel spindle; and

Fig. 4 is a transverse section through the suspension or tension element of my improved at- 35 tachment, taken along the line 4-4 of Fig. 2.

Although the invention has been shown and described herein, as being especially applicable for the removal of king pins of a particular type from the axles and spindle brackets of a certain popular make of automobile, it is not the intent to unnecessarily restrict the scope by virtue of such specific embodiment.

Referring to the drawing, the relatively standard automobile assemblage to which the improved implement is applied in Fig. 1, comprises in general, a main axle beam or front axle 6 from which the body and chassis I is resiliently suspended by means of a leaf spring 8 pivotally attachedto shackles 9 which are swingably attached to spring hanger brackets l0 secured to the x1e 6; ,and' wheel supporting spindles H ha g integral bifurcated brackets l2 pivotally attached to the opposite ends of the axle 6 by means of substantially ufiight spindle or king aspins I3. These spindle pivot pins I3 are snugly fitted or pressed within holes in the axle 6, and are journaled in alined holes in the bifurcations of the spindle brackets I2, and the longitudinal axes of the spindles II are ordinarily disposed at oblique angles relative to the central axes of the pins I3. The spindles II are tapered as shown in Fig. l, and depending upon the type of wheel used, these spindles II have annular bearing spacing shoulders I4 of different widths and diameters associated with the inner ends thereof adjacent their supporting brackets I2. The removal'of the king or spindle pivot pins I3 presents quite a problem especially in view of the numerous obstructions to access produced by the shackles 9 and brackets Ill, and by the brake shaf t housing cups and the enlargements at the upper ends of the pins I3 which make it difllcult to anchor the pin removers. Then too, the damage caused when a car is involved in an accident, and the freezing" of the king pins to the axles, frequently additionally hampers accessibility of the king pins I3, and augments the difliculty of removal thereof.

In order to efiect removal of the king pins I3, it is customary to utilize a jack having relatively longitudinally movable outer-and inner members one of which may be caused to react against the pin carrying parts, and the other of which is adapted to push directly against an end of the pin. As illustrated in Figs. 1 and 2, the jack mechanism is of the portable hydraulic type, and comprises an outer reaction member or cylinder I5; an inner pushing member or plunger I6; a pump H for creating a spreading hydraulic pressure between the cylinder I5 and plunger I6; and a hose connection I8 for conducting liquid from the pump H to the cylinder I5, and vice versa. This hydraulic jack assemblage is of relatively well known construction and may be replaced by a mechanical jack of any desired type having relatively movable reaction and pushing members.

My present improved pin removing attachment, is shown in action in Fig. 1, and somewhat more in detail in Figs. 2, 3 and 4. This appliance comprises generally, a sturdy reaction and suspension element I9 having an integral collar 20 screw threaded for convenient attachment to the upper end 2I of the outer jack member or cylinder I5, and having an integral hub 22 at its opposite end adapted for snug reception of a spindle II; a reversible centering adapter collar 23 snugly confined within a bore 24 formed in the inner end of the hub 22 by means of a friction lock 23, and having therein an offset annular abutment 25; and a pusher pin element 26 of less diameter than the pin I3, and having an enlarged end portion 21 screw threaded for convenient attachment to the upper end 28 of the inner jack member or plunger I6. The body portion 29 of the suspension element I9 is preferably trough shaped as illustrated in Fig. 4, so as to clear the plunger I6 and the pusher element 26, and is disposcdperpendicular to the axis of the hub 22 but at an oblique angle relative to the axis of the collar 20 so as to bring the jack axis directly in line with the axis of the king pin I3 when the hub 22 is properly positioned upon an adjoining spindle II. The reversible centering adapter collar 23 by virtue of its ofiset abut ment 25 and. its reversibility, may be caused to cooperate with bearing spacing shoulders ll of different widths and diameters, in order to effect such true alinement of the la and P 8 5; and

when correct centering has been efiected, a nut 30 coacting with the outer threaded end of the spindle II, may be utilized to hold the hub 22 in place while the pin I3 is being ejected.

During normal use of the improved spindle pin remover, the elements I9, 26, should first be properly applied" to the screw threaded ends 2|, 28 respectively of the relatively movable outer and inner jack members I5, I6, and the wheel and brake housing plate should be removed from the spindle II after the spindle lock pin has been withdrawn from the axle 6 and pin I3, which is to be ejected. The suspension element I9 may thereafter be properly applied to the inclined spindle II, so as to bring the pusher pin element 26 in proper alinement with the king pin I3 which is to be removed. When applying the implement to one type of automobile, it may be necessary to position the centering adapter collar 23 as shown in Fig. 2, while other types of automobiles might require reversed disposition of the collar 23 as shown in Fig. 3. When the hub 22 has been properly positioned upon the adjacent spindle I I, a nut 30 may be applied to the threaded outer end of the spindle so as to hold the jack mechanism in place. The pump I! may subsequently be manipulated so as to force fluid under pressure through the connection I8 into the outer member or cylinder I5, whereupon the plunger I6 will be gradually but positively elevated; As the plunger I6 moves upwardly, the pin element 26 is forced against the lower end of the spindle pivot pin I3 and gradually forces this pin I3 out of the alined holes in the axle 6 and bracket I2. Due to the fact that the axis of the pin element 26 and of the pin I3 are substantially alined, the pin I3 will be thus gradually removed without damaging the parts with which it is associated, and the reaction pressures during this removal are taken by the bearing spacing shoulder I4 of spindle I I with which the hub 22 of the supporting element I9 is associated without excessively stressing the spindle II and causing it to bend. When the pin I3 has been finally removed, the nut 30 may be withdrawn and the hub 22 may thereafter be removed from the spindle II after the jack has meen manipulated so as to lower the pusher pin element 26 sufiiciently to clear the lower portion of the bracket I2.

From the foregoing specific description it will be apparent that the present invention provides a simple, durable and compact implement for effecting rapid and convenient removal of the king pins I3. The improved tool may obviously be manipulated by a novice, and with minimum effort so as to efiect quick removal of these king pins, and the operation of the attachment is unhampered by other structural elements associated with or adjoining the axle 6 or spindle pin I3. The formation of the suspension element I9 with the hub 22 thereof, perpendicular to the body portion 29, while the axis of the collar 20 is disposed at an oblique angle relative to the body portion 29, permits most effective application of the pressures in line with the king pins and thus avoids buckling. By causing the reaction hub 22 to cooperate directly with the spacing shoulder I4 of spindle II, application of the implement to a car, is greatly facilitated, and the reversible collar 23 is of extreme utility in effecting alinement of the pusher pin element 26 with the king pins of various model cars. The invention has proven highly satisfactory in effecting actual removal of the king pins I3 having irregular enlargements at the upper ends 1;-

thereof, and the appliance may obviously be manufactured and sold at extremely moderate.

cost, considering the time saved during actual use thereof.

It should be understood that it is not desired to limitthis invention to the exact details of construction or to the precise mode of use, herein shown and described, for various modifications within the scope of the claims may occur to persons skilled in the art.

I claim: 1

1. A pin remover comprising, a reaction element having a threaded opening at one end formed for attachment to one of the relatively movable members of a jack and having a bored hub at its opposite end, the axis of the bore of said hub being disposed at an oblique angle relative to the axis of said opening and said hub being located entirely atone side of said opening axis, a pin element movable along said opening axis and having a threaded end socket formed for attachment to the other mo'vable member of the jack, and a centering adapter collar removably confined within said bore.

2. A pin remover comprising, a reaction elementhavingathrough opening at one end which is attachable to one of the relatively movable members of a jack and having a bored hub at its opposite end, the axis of the bore of said-hub intera reversible centering adapter collar removably confined within said bore.

3. A pin rem'overicomprising, a reaction element having through openings in its opposite confined within one of said end openings and .having an ofiset internal annular positioning abutment. and a pushing member movable along the axis of the other of said end openings and past the end of said collar, said abutment being positionable different distances from said pusher member upon reversal of the collar.

4. A pin remover comprising, a reaction element formed for attachment to one of the relatively movable members of a jack and having a bored hub at its opposite end, the axis of the bore of said hub being disposed at an oblique angle relative to the axis of movement of said jack members and said hub being located entirely at one side of said axis of movement and the bore thereof being formed for ooaction with the wheel spindle of a wheel supporting bracket having a pivot bolt alineable with said axis of movement, and a pushing element formed for attachment to the other jack member in alinement with said pivot bolt.

5. A pin remover comprising, a reaction element formed for attachment to one of the relatively movable members of a jack and having a bored hub at its opposite end, the axis-of the' bore of said hub being disposed at an angle relative to the axis of movement of said jack members and said hub being located entirely at one side other jack member in alinement with said pivot bolt.

EDWARD H. SCHULTZ.' 

